Archives of Internal Medicine · 2000 · 249 citations · 29 references
Health care utilization among COPD patients is approximately twice that of age- and sex-matched controls, with much of the difference attributable to smoking-related diseases. In this health maintenance organization, inpatient costs were similar to and outpatient costs were much higher than national averages for COPD patients covered by Medicare.
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Estimation of Relationships for Limited Dependent Variables
James Tobin · Econometrica · 1958 · 6.9K citations
Alfred F. Connors, N V Dawson, Charles L. Thomas et al. · American Journal of Respiratory and Critical Care Medicine · 1996 · 1.4K citations
Acute Lung Injury, Pulmonary Care, Advanced Lung Disease +18
International Classification of Diseases, Ninth Revision
Definitions · 2020 · 896 citations · Full text